Lepidoptera (/ Ë l É p Éª Ë d É p t Ér É / lep-i-DOP-tÉr-É) is an order of insects that includes butterflies and moths (both are called lepidopterans). About 180,000 species of the Lepidoptera are described, in 126 families and 46 superfamilies, 10% of the total described species of living organisms.
Skin Tension Lines and how to get it. 1  Skin Tension Lines (STLs) are series of lines based on the direction of tension as this relaxed skin tension lines run perpendicular to the underlying muscles contraction. For best results and aesthetic outcome, place skin incisions along skin tension lines.
Tension headache, also known as tension-type headache, is the most common type of primary headache. The pain can radiate from the lower back of the head, the neck, eyes, or other muscle groups in the body typically affecting both sides of the head. Tension-type headaches account for nearly 90% of all headaches.